Reliance Worldwide U004LF Lead-free Push-connect Coupling

Product Description

The RELIANCE WORLDWIDE U004LF is a lead-free push-to-connect coupling designed for quick, reliable joining of 1/4-inch nominal pipe with a 3/8-inch outer diameter. This fitting uses a SharkBite-style push-fit mechanism, allowing plumbers and pipefitters to make secure connections without soldering, clamps, or special tooling. At 0.08 pounds, it is a compact, lightweight fitting suited for both repair and new installation work in potable water systems. The lead-free construction meets federal and state safe drinking water requirements, making it appropriate for any application involving water intended for human consumption.

This coupling is used in residential and light commercial plumbing systems where a fast, dependable pipe connection is needed. It is well suited for tight spaces where torch work is impractical or unsafe. Typical applications include connecting copper, CPVC, or PEX tubing runs in supply lines, fixture connections, and in-wall repairs where minimal disruption to surrounding materials is a priority.

Key Features

• Lead-free construction compliant with safe drinking water standards for potable water use
• Push-to-connect design eliminates the need for soldering, crimping, or clamps
• 1/4-inch nominal size with 3/8-inch outer diameter compatibility
• Lightweight at 0.08 pounds, easy to handle in confined spaces
• Straight coupling configuration for in-line pipe joining

Compatibility

Designed as an OEM-style push-to-connect replacement coupling for residential and light commercial plumbing systems using 1/4-inch nominal tubing with a 3/8-inch outer diameter.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and depressurize the line before installing or removing the fitting. Ensure pipe ends are cut square, deburred, and clean before inserting into the push-fit collar to achieve a proper seal. Do not exceed the pressure and temperature ratings specified by the manufacturer for the intended application.

Technical Specifications

• Nominal Pipe Size: 1/4 inch
• Outer Diameter: 3/8 inches
• Weight: 0.08 pounds
• Lead-Free: Yes
• UPC Code: 697285453012

Standard Information

• Brand: RELIANCE WORLDWIDE
• Manufacturer Part Number: U004LF